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Efficient ISDA Initial Margin Calculations Using Least Squares Monte-Carlo

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arxiv 2110.13296 v1 pith:HBEO4KPS submitted 2021-10-25 q-fin.RM q-fin.CP

Efficient ISDA Initial Margin Calculations Using Least Squares Monte-Carlo

classification q-fin.RM q-fin.CP
keywords initialisdamargincomputingsensitivitiessimmapproachauthors
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Non-cleared bilateral OTC derivatives between two financial firms or systemically important non-financial entities are subject to regulations that require the posting of initial and variation margin. The ISDA standard approach (SIMM) provides a way for computing the initial margin. It involves computing sensitivities of the contracts with respect to several market factors. In this paper, the authors extend the well known LSMC technique to efficiently estimate the sensitivities required in the ISDA SIMM methodology.

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